Ventilator



J. SYLVAN.

VENTILATOR.

I APPLICATION FILED MAB. I5. 1919. l memedJune 17, 1919.

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JOSEPH SYLVAN, OF CHICAGO, ILLINOIS.

VENTILATOR.

Specification of Letters Patent.

Patented J une 17, 1919.

Application filed March 15, 1919. Serial No. 282,939. l

10 all whom t may concern:

Be it known that I, JOSEPH SYLVAN, a citi- Zen of the United States, anda resident of Chicago, county of Cook, and State of Illinois, haveinvented certain new and useful Improvements in Ventilatore; and I dohereby declare that the following is a full,

description thereof, reference being had to the accompanying drawl ings,and to the letters of reference marked thereon, tion.

This invention relates to improvements for ventilators and consists ofthe matters hereinafter described and more particularly pointed out inthe appended claims.

The object of the invention is to provide an improved ventilator for avehicle and is shown herein as applied to a railway car.

The improved ventilator isof novel and simple construction, is cheap tomanufacture and is eflicient to withdraw and discharge the foul air fromthe vehicle, and at the same time to prevent rain or snow from enteringthe vehicle through the ventilators.

As has been stated, the ventilator is shown herein as applied to arailway car and in such use two ventilators are required, one at eachend of the car, one being in use when the car is moving in onedirection, and the other being in use when the car is moving intheopposite directiom-the one in use being which form a part of thisspecifica- `the one at the rear of the moving car.

x In the drawings: y Figure 1 represents a view inside elevation of therear end of a railway car or coach 5 with the improved ventilatorapplied thereto.

Fig. 2 represents a view in rear end elevation of the same. v

Fig. 3 is a view representing, on an` enlarged scale, a section throughtheventilator in a plane indicated by the line 3 3 of Fig. 2.

Referi'ingnow in 4detail to thatlembodinient of theinvention illustratedin the accompanying drawings:l0 indicates the ventilator as a whole,which is made of sheet metal, the saine being attachedk to the top orroof 11 of the car, and communicating with the interior thereof by meansof an opening 12 formed in said roof (see Fig. Y

The ventilator Vis made of substantial width, extending a considerabledistance to either side of the longitudinal median line of the roof ofthe car. 1t is provided with a base Harige 13 which, bears u' on thereef 'of f `which rise from the car, and screws passing through saidiiange securely attach the ventilator as a vwhole to said roof (see Fig.3). The base is curved transversely or otherwise formed, as indicated at14 in Fig. 2, to fit the roof of the car when said roof is curved as inthis instance.

The ventilator has side or end walls 15, 15 the base and are spacedapart to define the entire width of the ventilator. 16 indicates therear wall of the ventilator. Said wall is inclined forwardly andupwardly, and has aA slight curvature 17 at its top, toward .the rear.Said Wall consists of a sheet metal plate 16X bent back upon itself toform the upright part of the wall,

Vincluding the curved top part 17, and the rearwardly and forwardlyprojecting bottom extensions 18 and 19 respectively. The extension part1S provides a part of the base flange 13 at the rear of the ventilator.The extension part 19 is inclined forwardly and upwardly only slightlyfrom the horizontal, for a distance about half the length of theventilator and is then carried vertically upward and forward insubstantial parallel relation with the rear wall 16 to provide a splashfiange 20, the top of which terminates in a rearwardly and downwardlycurved flange or lip 21. The plate 1GX forming the parts abovedescribed, extends the full width of the ventilator and is secured atits ends to the side or end walls 15, 15 by solder or in any otherconvenient manner known in the sheet metal art.

22 indicates `the front wall of the ventilator. This wall is made of asheet metal plate 22x extending the width of the ventilator and has apart bent forwardly and upwardly in parallel relation to the rear wall16 and flange 20 before mentioned, to provide the front wall 22 proper;a second part 23 bent horizontally forward from the bottom edge of thewall 22 to provide a portion of the base flange 13 of the ventilator; athird part 24 which is bent forwardly and downwardly from the top edgeof the wall 22 to provide a depending lip at said top edge; and a fourthpart 25 curved rearwardly from the top edge of the wall 22, to provide adeiiector plate which covers a passageway or flue 26, between the splashflange 20 and the front wall 22 that communicates with the opening 12 inthe car roof 11. The rear end of the deflector plate 25 overhangs theflanoe 2Q and into the between lip of Y Mi' said splash flange and therear wall 16, thus providing a staggered continuation 26a of saidpassageway or flue 26. The plate forming the parts just described, as inthe case of the other plate, has its ends secured in any suitable mannerto the side walls 15, 15 of the ventilator. 27 indicates the top. orcover of the ventilator. Said cover is curved forwardly and downwardlyin substantial parallelism with the deflector plate 25 and depends atits front end somewhat below the lip 2l. The rear end of thc cover iscurved upwardly and rearwardly as indicated at 2S, thus forming with thetop curved part 17 of the rear wall, a mouth or discharge opening 29.From an examination of Fig. 3, it will be seen that this cover 27,together with the deiiector plate 25 and lip 24, provides a Ipassageway30 leading from the space in front of the front wall 22 of theventilator to the discharge opening 29. The cover plate, as

in the case of the other plates, is attached to the side walls of thecasing. A v Y The operation of the ventilator is as fol-l lows:

As the car or vehicle moves forwardly, as indicated by the large arrow.31 in Fig. 1, a current of air will be produced in the direction ofthearrows over the top of the ventilator, as shown in Fig. 3, and at thesides thereof. This will induce a suction within the mouth 29 of theventilator which will act to draw the air through the flue 2G and itscontinuation 2G, up about the rear end of the delector plate Q5 and thenout through the mouth 29 of the ventilator. This suction will be greateras the speed of the car is increased.

Any rain or snow that may fall into the mouth or discharge opening 29 ofthe ventilator, which, as is illustrated, is directed somewhat upwardly,will fall directly intoa precipitation chamber 19a, defined by the sidewalls 15, the rear wall 16, splash flange 20 and bottom wall 19, or uponthe detlector plate 25, which latter being curved, willhdischarge itinto said chamber 19a. As has been pointed out, the bottom wall 19 isslightly inclined upwardly so that this water will gravitate toward therear end of the chainber 19a and in order to drain this chamber, `Iprovide discharge openings 32 inthe side walls of the casing, iii theangle between the rear wall and the bottom wall.

Such air currents as strike the front wall 22 of the ventilator will bedeflected upwardly and then downwardly by said front wall and by tliedepending lip 24, and will not enter the ventilator, but will bedeflected outwardly to be discharged at the sides of the ventilator.

When the car is going'l iii the opposite direction with respect to oneof the ventilaters, that is to say, so that currents of air will enterat the mouth 29 of the ventilator, being deflected into this path bymeans Y of the deilector plate 25.

Vhilc in describing my invention, I have referred to the same as beingused in connection with a railway car, I d0 not wish to be limited"thereto, as the same may be used to advantage upon limousineautoincbiles and other vehicles.

I claim as my invention:

1. A ventilator consisting of a casing having upright side, front andrear walls, and a top wall, said top and rearwalls being formed topresent an outlet opening which is faced upwardly and rearwardly, anintermediate wall between said lfront and rear walls defining with saidfront wall a flue, which opens through the bottom of the casflue, saiddeiiector plate together with said rear wall defining a staggeredpassageway l.connecting said liuc with said outlet, and

said deiiector plate with said top wall deiin ing, and al deflectorplate located above saiding a secondV passageway leading from the. 4

'space in front of said front wall, to said outlet opening.

2. A ventilator consisting of a casing having upright side, front andrear walls, and a top wall, said front and rear walls being inclinedforwardly, and said top and rear walls being formed to present an,outlet opening which is faced upwardly and rear# wardly, anintermedia-te wall between said front and rear walls defining with saidfront wall a flue, which opens through the bottom of the casiiig abottom wall connecting the Vbottom ends of said rear and intermediatewalls, said rear, bottom and intermediate walls deiining a.precipitation chamber which drains through openings in the sidewalls, adeflector plateoverhanging said iiue and defining withV said rear wall,a staggered passageway connecting said flue with said outlet, and saiddefleetor plate with said top wall defining a second passageway leadingfrom the space in front of said front wall, to said outlet opening, y

3. A ventilatorconsisting of a casinghaving upright side., frontV andrear walls, and a top wall, said front and rear walls being inclinedforwardly and said top and rear walls being formed to present an outletopening which is faced upwardly and rearwardly, an intermediate wallbetween saidl front and rear walls, defining with said front wall aflue, which opens through the bottom of the casing, said intermediatewall having a rearwardly curved lip at its top edge, a.y bottom Ywallconnecting the bottom ends ofsai'd rea-'r and intermediate" walls, saidrear, betteln and intermediate walls dei ning a precipitation chamberwhich drains through openings in the side walls, a delieetor plateoverhanging the intermediate wall and deiining with said rear walls, astaggered passageway connecting said Hue with said outlet opening, andsaid defieetor plate with said top wall delining a second passagewayleading from the space infront of said front wall, to said outletopening.

4. A ventilator consisting of a easing having upright side, front andrear walls, and a top wall, said front and rear walls being inclinedforwardly, and said topV and rear walls being formed to present anfoutlet opening which is faced upwardly and rearwardly, an intermediatewall between said frontand rear walls deining with said front wall aHue, which opens through the bottom of the easing, said intermediatewall having arearwardly curved lip at'its top edge, a bottom wallconnecting the bottom ends of said rear and intermediate Walls,

Copies of this patent may be obtained for ve cents each, by addressingthe said rear, bottom and intermediate walls defining a precipitationchamber which drains through openings in the side walls, a defleetorplate extending forwardly and downwardly from the top edge of the frontwall to form a lip, and extending rearwardly so as to overhang saidintermediate wall and defining with said rear wall, a staggeredpassageway connecting said flue with said outlet opening, and saiddefieetor plate with said top wall, defining a seoond passagewayleadingfrom the space in front of said front wall, to said outletopening.

In testimony that I claim the foregoing as my invention, I aHiX mysignature in the presence of two witnesses, this 11th day of March, A.D. 1919.

JOSEPH SYLVAN.

Witnesses: T. H. ALFREDS,

D. DARRENOUGUE.

Commissioner of Patents,

Washington, D. C.

